wtf is this buisness?!? lili bubble!!! ahh!! help

please excuse my horrible paintbox diagram. this is basically what the linear calibration looks like when i try to calibrate my liliput

everywhere else on the screen works perfect except for the bubble there. when i try to draw down the side of the screen it bubbles prettty much like the red line in the pic. the image is not distorted it just makes scrolling through music in CF freakin impossible!! any ideas? i am at work right now and planning on removing the screen when i get home, (its integrated into the dash, glass'd and all) and taking it apart, a little endust and torque everything back down again.....hopefully that will clear the problem up. im worried the touchpannel element is warped or something....